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제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Germylene-type reaction of the Ge(100) surface with tert-butyl isocyanide

2015년 9월 2일 15시 10분 30초
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목 09시 : 30분
물리화학 - General Oral Presentation
저자 및
송봉근*, Jong Suk Yoo1, Stacey F. Bent1,*
충남대학교 화학과, Korea
1Stanford University, USA, Korea
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승인 2건
Reactions of the (100) surfaces of Ge and Si with organic molecules have been generally understood within the concept of “dimers” formed by the 2×1 surface reconstruction. For example, it was recently discovered that adsorption of tert-butyl isocyanide (TBIC) on Ge(100)-2×1 occurs through a dative bonding configuration through the isocyanide carbon atom.[1] Here, we provide an unprecedented example of germylene-type reactivity of the Ge(100) surface provoked by adsorption of a dense monolayer of TBIC. Infrared spectroscopy experiments under ultra-high vacuum conditions were conducted together with density functional theory calculations. The suggested structure of the product resembles a germa-ketenimine molecule. Overall, our study expands the knowledge on the reactivity of the Ge(100) surface that parallels that of molecular group 14 compounds. [1] B. Shong, K.T. Wong, S.F. Bent, Strong Carbon-Surface Dative Bond Formation by tert-Butyl Isocyanide on the Ge(100)-2 × 1 Surface, Journal of the American Chemical Society, 2014, 136 (16), 5848